Herb Grinder - 4 Piece with Screen

**Plastic/microplastic will be present so I don't recommend using this for consumption.**

4 Piece functional Herb Grinder just like you'd find in store. Surprisingly strong enough for the job. Pieces screw together easy and printed screen doesn't do a bad job for a pollen screen. The screen is easily superglued into the underside of the bottom-middle piece.

The grinder teeth were optimized for 3d printing and strength and are reliable and durable. The idea is to minimize shear stress across layers and optimize shape to reduce shear forces. The result were grinder teeth that are wide, relatively thin, tapered, and shaped co-radially to limit shear stress from torsion. The teeth edges are also rounded to encourage movement of herb.

You may have a couple teeth tips break from poorly printed spots but aside from that it will be functional for a long time. Obviously since this is plastic you should avoid grinding big/thick stems because those have higher potential for damage.

The magnet files have spaces for 6mm diameter x 2mm thickness magnets for gluing in place so the top stays on. Magnet 3mm files are for 6mm diameter x 3mm thickness.

- Printed with teeth upwards, screen lines parallel to x and y axes, and with supports for the TopMid and BotMid pieces. 
- Can all be done in one print. Used 0.1mm layer height, 20% infill, with 3 perimeters and 3 bot/top layers.

Let me know if this design can be improved or if you like it!